Vary card battle lighting and time of day

assets/cards/README.md

@@ -22,6 +22,7 @@ The game art direction is adult-oriented multi-world pinup:
 
 - Characters should emphasize mature curvy female silhouettes and large-breast armor/clothing design.
 - The roster is not limited to medieval fantasy. From `C0004` onward, character concepts should deliberately cross eras and worlds: modern university fire mages, water-controlling idols, cyberpunk hackers, space-colony duelists, sports stars, noir detectives, post-apocalyptic racers, mythic fashion priests, and other time/space settings.
+- Battle scenes should not default to night. Vary time, weather, and lighting across the roster: bright noon, late afternoon, cloudy daytime, rainy day, sunset, dawn, indoor arena lights, stage lights, orbital daylight, and occasional night scenes only when the character concept calls for it.
 - Every character should have a distinct appearance DNA: face shape, eye shape, nose, lips, skin tone, hair, body proportions, bust shape, and overall presence. Avoid generating the same default pretty face and same body repeatedly.
 - Every character should also have a distinct combat identity and pose language: weapon or equipment handling, stance, posture, balance, hand placement, and silhouette should vary so the 1000-character roster does not feel like one model in different costumes.
 - Damage-state art should adapt to the character's world: armor destruction, torn modern clothing, damaged stage outfits, cracked sci-fi suits, broken sports gear, snapped belts, damaged bracers, dust, scorch marks, and defeated poses.

assets/cards/available-assets.json

@@ -1,6 +1,6 @@
 {
   "schemaVersion": 1,
-  "generatedAt": "2026-06-10T03:06:36.926Z",
+  "generatedAt": "2026-06-10T03:20:46.790Z",
   "expectedImageCount": 5000,
   "completedImageCount": 16,
   "completedCharacterCount": 4,